Vehicle-spring.



R. s. fao. -vEHlcLE SPRING. v APPLlCATIOH FILED MAR. 5. 1913.

Patented Sept. 26, 19].6.

R. S. TROU.

VEHICLE SPRINGl APPLICAUON man ma. e. 1913.

mem@ sept. 26,1916.

8 SHEETS-SHEET 2.

51A/vanto@ m55/@Lw R. S, 'ROTTl VEHICLE SPRING.. APPucATmN man MAR.6.1913.

Patented Sept, 26, 1916.

8 SHEETS-SHEET 3.

R. S. TROTT. VEHICLE SPRING. APmcAnoN man ma. e. 191s ai 999322 Patented Sept. 26, 1916.

i 3 SHEETS-SHEET 4.

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Wwf/few@ m R. S. TRUTT.

VEHICLE SPRING.

APPLICATION FILED NIAR.6.19I3. 1,199,322.` Patentedsept. 26,1916.

8 SHEETS-SHEET- 6.

R. S. RTT.

VEHICLE SPRING.

APPucATxoN FILED MAR.6.1913,

Patented Sept. 26, 1916.

R.y s. TROU. VEHCLE SPRING.

APPIJCATIQN FILED MAR'. 5. 1913. I

Patented Sept. 26, 1916.

8 SHEETS-SHEET 8.

a citizen of the United States,

ROLLAND S. TROTT, F DENVER, COLORADO.

VEHICLE-SPRING.

Specification of Letters Patent.

raienrea sept. as, isis.

Application led March 6, 1913. Serial No. 752,394.

To all whom 'it may concern Be it known that I, ROLLAND S. Tno'r'r, residing in the city and county of Denver and State oi' Colorado, have invented certain new and useful improvements in Vehicle-Springs, of

which the following is a specification.

My invention relates to an improvement in vehicle springs, and more particularlyo to the type of springdisclosed in Patentso Nos. 1,029,731 and 1,029,732, issued to me June 8, 1912,-on which the present device is an improvement.

The object of this Yinvention is to provide a spring structure for vehicles in which the load springs are mounted to permit movement of the axle in a direction longitudinally of the frame, and to right themselves and restore the axle to its'normal position.

A further object is to provide means connected with the axle in such a manner that the axle will, irrespective of its movement, be held in a position approximately at right vangles to the longitudinal extent of the frame.

A still further object is to provide means whereby the movement of the axle, perniitted by the connection of the load spring, is resiliently opposed, and the load springs are aided in their restoration when the axle has been moved from its normal position.

With these objects in view, this invention consists of certain novel features of construction and combinations of parts which will be hereinafter more fully described and pointed out in the claims.

In the accompanying drawings: Figure l is a view in side elevation of the chassis of a motor vehicle, disclosing one form which this .invention may take applied thereto, Fig. 2 is a top plan view, Fig. 3 is a v iew similar to Fig. Lipff one end of a vehicle, illustrating a simple form of the invention and, in a diagrammatic way, the'operation, Fig. 4 is a top plan View of the structure in Fig. 3, Figs. 5; 6, and 7 are views of modi'- ted forms of connecting spring and holding means between the reach and frame, Figs. 8, 9,10, 11, 12, 13, and 14 are still other modiiications of this mechanism, Figs. 15 and 16 disclose connecting and holding means adapted for use without the spring, Figs. 17, 18, and 19 are views in side eleva' tion of the one end of the vehicle frame, in which the supplemental restoring action is induced by a spring connected between the axle or load spring and the frame, Fig. 20 isa 'detail view to illustrate one manner in which the holding means may be connected to the -frame, Fig. 2l is a view in side elevation of one end of a frame, disclosing the structure of the so-called underslung type, mounted in connection with a spring, fied forms of semi-elliptic load springs which might be used, and, Figs. 26 and 27 are views in side elevation and transverse section respectively, to illustrate one adaptation of the spiral or helical spring.

Referring to the structure disclosed in Figs. l and 2; The frame A is supported by the front and rear -axles 1 and 2 through the medium of load springs 3-3. The load springs are in this instance illustrated as of the multiple leaf semi-elliptic type, which are connected at their ends with the frame through .links H. The frame is of the so-called overslung type, and the connection of the links 4`4 is at the brackets 5-5, so that the links have a pulling strain from their connection with the frame, rather than a compression strain, which would be sustained if the links 4 were connected directly with the frame, and the load springs connected with the free ends of the links below the frame as disclosed in my patents above referred to. The V-shaped brace is secured at its extremities near the ends of the axle 1, and a similar brace 7 is secured in a like manner on the axle 2.4 Cross braces 8 and 9 are secured between the side members of the frame A, and brackets 10 and 11 depend from the lower proximately at the center. Each of the brackets has formed on its lowerend the socket member 12 of a ball and socket joint. The ball member 13 is adapted to be held against pull or thrust in this socket member and a full elliptic spring 14 is secured to the' reach, the bars 6, and to the ball 13, held at a fixed point on the cross bar 8. A similar full elliptic spring 15 is secured between the angle of the brace 7, and the ball member 13, held at a permanent point by the cross bars 9 of the frame.

The structure as described would be under normal conditions, operative and eil'- cient, but in some instances where a. great shock is received by one of the wheels a and the wheel on the opposite end of the axle receives no shock at all, the reach might have a tendency to twist, and by forcing the full elliptic. Figs. 22, 23, 24, and 25 disclose modi' sides thereof apthe form described.

`mitted, but the forward end of the reach is held against any lateral movement.

In Figs. 3 and 4 1 have disclosed one of the simplest forms of the invention. frame A, axle 1, wheel a, and spring 3 are of The load spring 3 is connected with the brackets 5 of the frame by the links as heretofore described and so connected that a pulling strain is trans mitted to them. The reach 19 is made .V-

shaped in *glam and is at its extremities con- Y vertical line as indicated by nected near the ends of the axle 1.' n. central tubular member 20 is provided at the angle of the reach or brace. A bracket 21, carried by the yframe, formed on the lower end, and the ball member 23 is adapted to tit this socket. A cylindrical member 24 is secured to the ball 23 and fits intovthe tubular member 20 of the reach. In this way the axle movement in a direction longitudinal of the frame. The reach 19, through the cylindrical member 24, being extensibly connected at the iixed point or socket 22 on the frame, in. a shock transmitted to the wheel a in the direction of the full line arrow will cause the links 4 to be swung around their pivotal connection o with the fra-me to a greater or lesser angle as indicated by the diagonal line -c. Since the links 4 are mounted between the load spring and trame in such a manner that a pulling strain is transmitted to them, their tendency is to center, and the greater the load the greater this tendency. The links therefore rightl themselves to the position indicated, so that they stand in a the dotted line 3P-d.A Il? a shock is transmitted in the direction of the dotted arrow to the wheel a, the links swing in a direction indicated by the diagonal line b-e, and again the tendency ot the links 4 to' right themselves restores the axle 1 to its' normal position. In this way the axle is free to move in a direction longiti'idinal of the frame, and is held by the reach 19 and the connection with the frame always in a position approximately at rightangles to the longitudinal extent of the iframe.

zontal longitudinal direction the tendency is against said movement,l and when the pres- TheV has the socket 22 has freedom oi.

lthrough the tubular The connection of the axle with the vframe through the load spring and the links is such that as the axle moves in the horibearin 44 is fitted 'annesse sure causing this movement is relieved, vthe axle is returned to normal position.

In Fig. 5 a reach and restoring spring similar to that disclosed in Fig. 1 is shown, y

but in this instance the toggle is not used. v

Guide bars 24-24 are secured to extend `longitudinally of the frame above the angle of the reach. A bracket 25 is carried by the inner end of the reach, and aA friction wheel 26 is revolubly mounted on the bracket 24 and prevents movement ot the end of the reach. l

ln lj1 ig. G the end of the reach adjacent the angle has bearings 27 formed. Eraclrets 28-4 28 are carried by a cross bar 29 secured to the :form to project downwardly and ern-l vbrace the reach 19a. spaced apart a distance greater than the width of the bearing 27 stated in the description of Fig. 5, and the reach has tree movement longitudinally and vertically between these braces. Y

1n Fig. 7 is shown a combination of the structure of li`igs-1-2 and 8-4 "in this structure the tubular member 24 has a full elliptic spring 30 secured thereto, and the spring on. its opposite side i the ball member 31, which is held in. the socket member 32 at a fixed point on the frame.. The cylindrical member 2O2L is .in this instance also tubular, and the ball and socket joint is made hollow so that the drive shaft can extend. therethrough, and

reach down to a position to drive the axle.

In llig. 8 a spring casing 34 is carried by the ball member 35 heldin a socket 86 on the frame. fan extension 37 on the .reach 191 extends into the casing 34and embraces 'a cylindrical member 38." A nut or collar 39 is carried by the end of the extension 37, and shock and rebound springs 40 and 41 are -received aroimdV the extension 37 and cylindrical member 38 vto bear 'against collar 39 'and resiliently oppose movement of the reach 1%? endwise.-

The structure disclosed in Fig. 9 is identi# cal7 with the exception joint 42 or diterent construction isJ used, and a skeleton wol-1h43 takes the place of the spring casing 34 showrrindig. 8.

ln Fig. 10 a bearing member 44 isfornied at the angle of the reach. Cross bars 45 and 46 are secured to the frame. A rod 47 is mounted between these cross bars and thef ver the rod. Shock and re ound springs 8 and 49 are received.

The brackets 28 are s connected to member 24 rof the f for the reason A the that a uniyersal a tubular yoke hearing 44a. Otherwise the structure is similar. l I

In Fig'. 12 the reach is shown having hifurcated portion 50, and a leaf spring t secured to the frame is pivoted in the hifurcated portion. so that the reach can have movement horizontally in longitudinal direction. hut is prevented from side movement.

In Fig. 13 a toggle 52 is pivoted to the frame and the reach is pivotally connected at with the toggle. Shock and rebound springs 54 and are positioned to hear against the toggle on opposite sides and resilientlv oppose swinging movement thereof around the pivotal connection f With the frame. ln Figs. 15 and 1G the structure disclosed is similar to that shown in Figs. 10 and 11. the exception heine*7 that the lshock and rehonnd springs are omitted. These forms of connection between the reach and Atrame are particularly adaptable? to the structure disclosed in Figsl?, 18, 19, 21, and 2G. *Y

In the disclosure in F ig. 14, rods 76 are connected at their one end with the universal joint 77 and are mounted to slide in bean ings 78 carried hy the reach 19C, 'the springs 79 and 8O heing mounted on the rods on either side of the hearings to resiliently op pose sliding:T movement of the rods through the hearings.

ln the form of the invention shown in Fig. 17 the bars are connected as in Figs.

3 and 4. A rod 56 is connected with the axle` 1 and has free sliding movement through henrings 5T dependingr downwardl] from 'the traine Shock and rebound springs 58 and .70 are received around the rod 56 on each side ot the hearingI 57, and the springs are heid on the rod hv nuts -60, which are also adf-ipted to adjust the tension of these springs. ln F 18 the structure is similar to that in hier. 17,'hut in this instance a rod '31 is pivotally connected 'to one of the links -1 at a point away from the pivotal connection of the link with the frame. A Mack/.ft oi is carried by the frame, and the rod (51' has tree sliding movement therethrough. fi his sliding movement is ooposed hjv the shock and rebound springs S3 and 6ft,

icncjf ot the link Zl. with Winch and the ii the load spring is connected, swin, around its point of Pivotal connection Wit the frame is resilien'tly opposed.

ln Fig. 'l0 the reach. load spring and the connection oi" the load spring with the trame are the saine. the exception being that the traine is ot the und rslnng type. l'n this form the link 6 has a hearing formed at a point beyond the pivotal connection with 'bowed in one direction or the volte adjacent its pivotal connection7 kthis vwav the. load carried @y I z the freine. A rectilinear leaf spring secured on this hearing, and its opposite end is connected by a link 66 with the frame. .-"Lny tendency of the link (Se to swing around its pivotal connection with the frame causes the rectilinear spring', through its eonnection with the hearing of the link 6- to he flexibility of the spring acts to resiliently oppose said pivotal movement and to restore the l'ink'when Athe pressurecausing that movement is relieved.

In Fig'. 20 another form of connection which might he used between the inner end of the reach and the frame is shownythe rods 47 are connected to the forward end of reach 19"v and slide througha hearings 8l i carried to depend from the fraihe.

ln Fig. 21 a structure very sirniiar to that illustrated in Fig. 19 is shown. "With this structure a full elliptic sprii'ngr o? is connected onits lower side ato?? with the frame., and on, its upper side and, a point vertically ahove7 with the axle 1. A. rectilinear leaf spring {Si} is secured to the spring o? at jacent the. pivotal connection with the frame, and 'the free end of this spring 69 has connection at TO with the frame A. in this vstriioture the axle 1 tends to swing2 pivotally around the connection G8 of the load spring with the frame. This causes thelrectilinear spring 69 to he bowed. and in this ivajv the spring` G9 resiiiently opposes the movement of the axle and restores the axle.

ln Figs. 22, 2li and modifications of the form of load springs are shown. "In this instance the spring is disclosed as of the semi-elliptic type, with one end connected hy a link 41C to the bracket 5 of the iraine A. and the opposite end o the hears against the frame '-.vhere it is held sidewise displacement, out has movementfon,f {fitiidinalljr oi' the ln "Figs, 26 and 23" a pivot pin Zi is mounted on the traine. The pivoted on 'this pin7V and hearing T3 is received within the yoke slidal'fltv and earriestne side 1. Spiral spring 7451s heid at one in the hearing;r 73, and at its opposite end the causes the spiralspring to Ahe stra ticallv. and the hearing 73 moves op and down in the voice. lvlith this torni the tendency would he for the to restore the asie to its no2-incl position. .flue to the pi connection of volte with to snpplement this restoring` action. a helical sprinc is received around the pin 1? and is secured et its one end thereto. The opposite end of the spring 75 is brought op lalongside the an i is: connected the `Eto.- so that the yoke swings around the 'the helical spring exerts pressure to oppose said swinging movement.

other, and the v 'pi vot pin It will thus 1oe seen that have provicleol4 a structure in which the axle is so connected with the frame that it has free movement longitudinally of the frame, and further, when the occasion requires, l have provided mechanism, 'which may be used to suppler ment said restoring action.

lt is evident that there are still other means of connecting the axle with the frame, and yet other supplemental restoring means which might be resorted-to, Without depart-` ing from the spirit and scope orf my invention,'ancl hence do not Wish to limit Hij-self to the exact description herein set forth,

but

Having fully described my invention, what claim as new and desire to secure by Letters Patent isd l. The combination with a vehicle :traine and axle, of load springs, tension links oonu neeting the load springs to the frame, and.

means for keeping the axle square.

The so 'i and aille, or leacl springs, tension links con aination with a vehicle frame `nesting the load springs to the frame', means l for keeping thev axle square, and a iiXed point necting ne load springs to the frame, means' for keeping the axle square, and means for resiliently opposing the swinging of the 'links and horizontal movement of the axle.

4. The combination With a vehicle frame anclaxle, of load springs, tension link s een necting the load springs to the rame, means for keeping the axle square, a xed point pivot Connected to the frame to Which said` means extends, and means for resiliently op-` posing the swinging of the linlsand horizontal movement of the axle. n testimony whereof I affix my signature, in the-presence of two Witnesses.' Y ROLLAND S. 'IROT'4 Witnesses:

F. H. W'ALLAGE, Unas. Swanton. 

